122 lines
3.4 KiB
Ruby
122 lines
3.4 KiB
Ruby
module PrometheusHelpers
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def prometheus_memory_query(environment_slug)
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%{(sum(container_memory_usage_bytes{container_name!="POD",environment="#{environment_slug}"}) / count(container_memory_usage_bytes{container_name!="POD",environment="#{environment_slug}"})) /1024/1024}
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end
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def prometheus_cpu_query(environment_slug)
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%{sum(rate(container_cpu_usage_seconds_total{container_name!="POD",environment="#{environment_slug}"}[2m])) / count(container_cpu_usage_seconds_total{container_name!="POD",environment="#{environment_slug}"}) * 100}
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end
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def prometheus_query_url(prometheus_query)
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query = { query: prometheus_query }.to_query
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"https://prometheus.example.com/api/v1/query?#{query}"
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end
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def prometheus_query_range_url(prometheus_query, start: 8.hours.ago)
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query = {
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query: prometheus_query,
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start: start.to_f,
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end: Time.now.utc.to_f,
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step: 1.minute.to_i
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}.to_query
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"https://prometheus.example.com/api/v1/query_range?#{query}"
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end
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def stub_prometheus_request(url, body: {}, status: 200)
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WebMock.stub_request(:get, url)
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.to_return({
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status: status,
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headers: { 'Content-Type' => 'application/json' },
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body: body.to_json
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})
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end
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def stub_prometheus_request_with_exception(url, exception_type)
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WebMock.stub_request(:get, url).to_raise(exception_type)
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end
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def stub_all_prometheus_requests(environment_slug, body: nil, status: 200)
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stub_prometheus_request(
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prometheus_query_url(prometheus_memory_query(environment_slug)),
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status: status,
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body: body || prometheus_value_body
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)
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stub_prometheus_request(
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prometheus_query_range_url(prometheus_memory_query(environment_slug)),
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status: status,
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body: body || prometheus_values_body
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)
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stub_prometheus_request(
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prometheus_query_url(prometheus_cpu_query(environment_slug)),
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status: status,
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body: body || prometheus_value_body
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)
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stub_prometheus_request(
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prometheus_query_range_url(prometheus_cpu_query(environment_slug)),
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status: status,
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body: body || prometheus_values_body
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)
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end
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def prometheus_data(last_update: Time.now.utc)
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{
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success: true,
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metrics: {
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memory_values: prometheus_values_body('matrix').dig(:data, :result),
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memory_current: prometheus_value_body('vector').dig(:data, :result),
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cpu_values: prometheus_values_body('matrix').dig(:data, :result),
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cpu_current: prometheus_value_body('vector').dig(:data, :result)
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},
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last_update: last_update
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}
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end
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def prometheus_empty_body(type)
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{
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"status": "success",
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"data": {
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"resultType": type,
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"result": []
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}
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}
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end
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def prometheus_value_body(type = 'vector')
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{
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"status": "success",
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"data": {
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"resultType": type,
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"result": [
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{
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"metric": {},
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"value": [
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1488772511.004,
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"0.000041021495238095323"
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]
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}
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]
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}
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}
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end
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def prometheus_values_body(type = 'matrix')
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{
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"status": "success",
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"data": {
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"resultType": type,
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"result": [
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{
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"metric": {},
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"values": [
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[1488758662.506, "0.00002996364761904785"],
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[1488758722.506, "0.00003090239047619091"]
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]
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}
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]
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}
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}
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end
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end
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